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Motion technology products designed for high strength, reliability and long-life.

Screw Jacks

Screw Jacks

Linear Actuators

Linear Actuators

Rotary Unions®

Rotary Unions

Acme Ball and Screws & Nuts

Acme & Ball / Screws & Nuts

SinglePhaseJog-Panel

Control Systems

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Rotary Union® Promotion

Now through February 28, 2020 we’re offering an additional 10% discount on rotary union orders that meet specific requirements.

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Aircraft Maintenance Systems

Kern Steel’s One Maintenance System Fits All using Duff-Norton's Turnkey Automated Actuator System (AAS) lifting system is an aircraft maintenance system that can accommodate various aircraft models with its adjustable platforms that reach standard maintenance areas from cockpit to tail. 

Read our case study

 

Naval Railgun Testing

The EM Railgun launcher is a long-range weapon that fires projectiles using electricity instead of chemical propellants. Two Duff-Norton 150T Screw Jacks were used in this application.

Read our case study

 

Homeland Security

Raise or lower security barriers to stop on-coming vehicles

 

Armored Vehicles

Raise or lower bullet proof windows on armored vehicles, such as Tahoe, Suburban, Range Rovers, etc.

Products used

Linear Actuator  MPD 500 lb. DC Actuator (TracMaster 500 lb. DC Electromechanical Actuator)

 

Tooling High-Strength Composite Materials

Four 35 ton actuators are used in a lifting assembly to convey tooling (die cast) components of high strength composite materials on a cart to a curing station. Curing durations may last from 4-6 hours at temperatures between 350  400°F.

Products used

Screw Jack, Unit: 35 ton actuator - LCM-9035-40B - 4X in U shaped layout with gear boxes  clevis end with limit switch

 

Explosive Materials Inspection Equipment

Two actuators are used to lift (via a hand crank) the gamma ray equipment into position to x-ray vehicles for explosive materials.

Products used

Screw Jack, Unit: DM3502-197B actuators (special rotating 1 ton MS)

 

Orbiter Sling Set

A trailer and sling is used to support the orbiter and shift weight to allow for maintenance work to be done.

Products used

Screw Jack, Unit: 5 ton rotating ball screw actuator with 1 inch lead

 

Satellite Dish Antennas

This application involves the positioning of large commercial satellite dish antennas requiring a precise lock onto a satellite in orbit. Anti-backlash units are used in this type of application due to the need for greater accuracy.

Products used

Screw Jack, Unit Three 20 ton ball screw actuators

 

Industrial Machinery

The actuator is used to position a slide/diverter gate at the bottom of a screw conveyor to distribute phosphate in different directions.

Products used

Linear Actuator  SPA 2000 lb Actuator (TPSPA6420-18)

 

Construction Equipment

Throttle control in off-road vehicles to increase or decrease engine speed.

Products used

Linear Actuator  LT Series 156 lb. Actuator

 

HVAC Installation

The actuator is used to divert air flow between ducts.

Products used

Linear Actuator  500 lb. TAC Series Actuator

 

Rollforming Steel for Siding Used on Buildings

A steel roll of varying thickness is pressed by a series of rollers, (in this instance, there are 11 dies, requiring 22 actuators).  Each die makes a little impression in the steel until the desired end product is achieved.

Products used

Screw Jack

 

 

Conveyer System

Bin transfer and tipping conveyor for automotive plant.

Product used

Linear Actuator  5 Ton Worm Gear Actuator

 

Ergonomics

Raise or lower a motorcycle engine assembly fixture

Product used

Linear Actuator  SPA 200 lb. Actuator

 

Aluminum Can Forming

The rotary union transfers grease under high pressure on an aluminum beverage can forming machine that crimps the top edge of the aluminum can.

Product used

Rotary Union  Unit: 600 Series.

Media: High pressure grease

 

Robotic Arm

The rotary union is used in a robotic arm that puts urethane adhesive to attach windshields and rear windows to the vehicle.

Product used

Rotary Union  2 per machine, Unit: 1900 Series.

Media: Urethane adhesive

 

Production of Kaolin

The Calciner machine heats the kaolin to approximately 1100°F and transfers it through a rotary union where it is cooled to app. 140°F. Find out more about Kaolin here.

Product used

Rotary Union, Unit: 8000 Series.

Media: cooling water

 

Carpet Dye Mill - Carpet Chiller Roll

Bulk woven carpet is brought to a section of the mill where the carpet is dyed and the final backing is attached. Our joint allows chilled water to the ID of a SS roll.  Rubberized adhesive is applied to the backing and "hardened” by the chiller roll prior to being pressed by subsequent rollers onto the woven carpet.

Product used

Rotary Union, Unit used: Dual Flow  1", # 730305,

Media: chilled water 

 

Cyanide

Copper roller compaction press used in the production of cyanide.

Product used

Rotary Union, Unit: 471791 Series 9000

Media: hot oil

 

Molded Toilet Seats

Dryer machine dries wood flour to 1% moisture level, which is then used to mold into toilet seats.

Product used

Rotary Union, Unit: 3 inch 8000 Series

Media: steam

 

Plastic Bottle Production

A Ferris wheel blow molder produces a bottle every 2-3 seconds. The rotary union using cooling water to cool the molds and air to open and close the molds.

Product used

Rotary Union, Unit: 2-1/2 inch dual flow 9000 series

Media: cooling & air

 

Windshield Wiper Motors

A 20 ton inverted ball screw actuators with a Servo motor, was chosen for this application because of the need to run units at a precise speed and travel distance. Instantaneous response is a necessity here.

Product used

Screw Jack, Unit 20 ton upright ball screw actuator.

 

Concrete Block Production

The actuator is used in a block loader mechanism which loads "wet" blocks onto motorized rail carts for transport to the Kiln.  Once cured the loaded carts automatically return to the opposite side of the machine where an identical mechanism unloads cured concrete blocks onto a conveyor system that takes them to a palletizing station for final packaging and shipment.

Product used

Screw Jack, M10824-24 a 25-ton Ball screw actuators.

Read our case study

 

Rollforming Steel for Siding Used on Buildings

What makes this system a little different is the incorporation of counters on the actuators.  In the past, the operator had to guess at the setting when he was changing thickness of the steel.  With the counter, he knows where the actuator should be with relative position by the number on the counter.  This eliminates trial and error once the desired positions are determined.

Product used

Unit: (22)  5 ton inverted machine screw actuators

 

HVAC Production Process

The combination of screw jacks and linear actuator used in this process allowed the operator to tilt a very heavy object into a position that made the step in production much more efficient.

Product used

Screw Jack, Unit: B9250

Linear Actuator, Unit: SPA6415-18

Read our case study

 

Paper Production

A turnkey system incorporating a Servo Driven 5-ton Actuator assembly with an embedded load cell for belt tensioning and a Servo Driven 5-ton Actuator assembly steering package were used to center the paper product on the paper machine rollers.

Product used

Screw Jack

Unit: 5 ton ball screw jacks

Unit: Servo drive with load cell

Unit: ½ ton machine screw jacks

Read our case study

 

Plastic Film Production

Raise and lower Extrusion Carriages while manufacturing very large rolls of thin plastic film.
The lifting screw jacks utilized needed to have the ability to withstand high dynamic shock and vibration when in the extended position while holding a carriage table in several required positions within tolerances of a thousandth of an inch.
 

Product used

Screw Jacks

Unit: M10025 -XX modified 25 Ton, with Custom Bottom Bushings using Food Grade Grease

Read our case study

 

Automated Guided Vehicles

The LT50-2-50, a long lasting micro limit switch actuator, has a much longer life cycle than the previous actuators and the ability to keep up with production specifications.

Product used

Linear Actuator

Unit: LT50-2-50

Read our case study

 

Steel Production

A steel mill with a two vessel BOF (basic oxygen furnace) has an extremely labor-intensive production process.

Product used

SuperCylinder

Unit: SCW05 Series model RO530-B47-105

Read our case study

 

Welding Structural Castings

Fixtures that hold the large castings must be stable across a broad range of angular manipulation, and the transition time should be reasonably fast and safe to ensure high productivity.

Product used

Screw Jack

Unit: 5 ton screw jack with wear indicator

Read our case study

 

Aircraft Assembly

Lift and position aircraft structural sections that need to be aligned very accurately with pre drilled holes on the surface of the aircraft fuselage frame.

Product used

Screw Jacks

Bidirectional Drives

PLC Controller

Remote Control Pendant w/Graphical User interface

Read our case study

 

 

 

 

 

 

 

Beverage Bottling Line

The actuators control the feeder mechanism for the automated bottling line that allows the operator to adjust for different bottle heights.

Product used

Screw Jack, Unit: ¼ ton M2555 Actuator

Read our case study

 

Transfer

Use to tilt a large food kettle to pour the mixture.

Product used

Linear Actuator  SPA 1500 lb. Actuators

 

Industrial Oven

The actuator is used to adjust the thickness of cooler insulation panels.

Product used

Linear Actuator  TAL Series 1000 lb. Actuator

 

Beet Cooker

The rotary union is used to transfer steam into a chamber surrounding a beet cooking pot.

Product used

Rotary Union, Unit: 8000 Series, Media: 150 psi steam

 

Butter

The butter passes around the rotary union from the pasteurization process to a temperature treatment stage using heating and cooling water.

Product used

Rotary Union, Unit: 9000 Series dual flow with rotating syphon pipe, Media: heating and cooling water

 

Cheese Production

An ammonia cooling wheel is used in a clean room environment during the production of cheese.

Products used

Rotary Union, Unit: 9000G, Media: ammonia

 

Meat Tenderizing

The rotary union transfers glycol into the mixer to cool the meat during production.

Products used

Rotary Union, Unit: 9000 series, Media: glycol

 

Wine Making - Grape Cap Buster

Grape cap buster, to break up the "Cap" of grape skins and seeds that float to the top of the tank during the fermenting stage of wine making.  The dispersion of skins and seed into the wine during fermenting enhances the flavors and texture.

Products used

Screw Jack, Unit: M2859, 50-ton Ball Screw actuator

 

Industrial Oven

A 15-ton stainless steel actuator is used to raise, lower and spin oven racks to ensure even baking of bread. Food grade grease is used making it safe for food producing applications. 

Products used

Screw Jack, Unit: 15 ton stainless steel actuator

Boom Operation

Linear Actuator  5 Ton Worm Gear Actuator

 

Conveyor/ Plating

Linear Actuator - 6 Ton Electric Cylinder

 

Foam Grabbing Equipment

The actuator is used to position the foam grabbing arms that grip a large block of foam to lift and move it to the next position

Product used

Linear Actuator  SPA 1500 lb. Actuators

 

Conveyor System for Boeing

This massive, double sided, conveyor system developed for Boeing requires 10 high duty cycle actuators to raise and lower each section of the system. The actuators are synchronously run from a singe motor.

Product used

Screw Jack, Unit: High Duty Cycle Actuator

 

Mail Order Pharmacy

Dumper bin used at a mail order pharmacy holds the packaged prescriptions that are ready to ship.  When prescriptions are filled, they are put in an appropriate sized and labeled bottles and then put in a shipping box or envelope, address labeled and then they travel via various conveyors to the dump bin.  This bin then dumps all the packages on a conveyor system that leads to a zip code sorting area where they are picked up by ups or other carriers.

Product used

Screw Jack, Unit: LM10710-49 Maxi-Pac

Elliptical Trainer

The actuator is used to adjust the handles to fit the height of the user.

Product used

Linear Actuator  LT Series 100 lb. Actuator

 

Medical Machinery

A medically compliant method of raising, lowering and tilting a patient table. 

Product used 

Linear Actuator

Unit: UL60601

Unit: Programmable TCI controller with pendant, foot pedal, and backup battery

Read our case study

 

Electric Stairlift

The stairlift, which travels up and down a flight of stairs, brings independence to people with limited mobility.

Product used

Linear Actuator

Unit: Customized LT50S-2-333E with limit switches and Motor

Read our case study

 

Atom Collider Highway - Test Fixture

The mechanical actuator is used on a particle collider test fixture that smashes atoms of different shapes and sizes at different frequencies to see if energy can be harnessed. The actuator is used to do miniscule adjustments of the collider highway to measure the energy expelled during a direct hit.

Product used

Screw Jack, Unit: 10 Ton Machine Screw Actuator for extremely precise adjustments

 

Moveable Stadium Scoreboard AAS

Stadium scoreboards enhance fan experience, movable scoreboards increase possible locations. With so many scoreboards and screens, especially those at ground level, moving equipment and personnel in and out can be problematic. Duff-Norton’s automated actuator systems (AAS) are the perfect solution to these types of problems.

 Read our case study

 

TV and Movie Production

Truck fitted with lighting on booms provides daytime” lighting for TV and movie production

Product used

Linear Actuator  HMBP 500 lb. AC Actuator

 

Snowmobile Trail Grooming

Snow grooming machine attached to a snowmobile, one actuator is used to lower the claws that breakup the snow, the other actuator is used to lower a backend sled that puts grooves in the snow the width of snowmobile rudders. 

Product used

Linear Actuator  MPD 500 DC Clutch Actuator (2 TracMaster 500 lb. models)

 

Adjustable Basketball Hoop

The actuator in this application allows the adjustment of a basketball backboard from a 10-foot regulation height for adults, down to an 8-foot height for young players.

Product used

Linear Actuator, Unit: LS 48-S001 with 24 inches of travel ad adjustable limit switches

Read our case study

 

High-Speed Boat Racing

Description

The actuators provided ideal airfoil positioning for the duration of the race. The potentiometer feedback instructed the onboard PLC to position the airfoil to an optimal angle to maximize ideal speed and traction of the boat while on the water.

Product used

Linear Actuator

Unit: LT100-1-300P

Read our case study

 

School Bus

The actuator is used to open and close the school bus door.

Product used

Linear Actuator  MPD 500 lb. DC Clutch Actuator

 

People Mover Trams

People mover trams keep airport operations running smooth.

Product used

SuperCylinder

Unit: W0506B47

Station Brake

Unit: NZ06-0479-002

Movable sheave

Unit: NZ06-0479-003

Cable Lift

Read our case study

 

Aircraft Engine Service

Four 20 ton mechanical actuators used in dynamic tension to support the weight of each Jet Engine.

Product used 

Screw Jacks

20 ton Mechanical Actuators

Motor with extended shaft

Handwheel

Read our case study